EXTINCTION
extinction, extinguishing, quenching
(noun) the act of extinguishing; causing to stop burning; “the extinction of the lights”
extinction, experimental extinction
(noun) a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
extinction, extermination
(noun) complete annihilation; “they think a meteor cause the extinction of the dinosaurs”
extinction
(noun) the reduction of the intensity of radiation as a consequence of absorption and radiation
extinction, defunctness
(noun) no longer in existence; “the extinction of a species”
extinction
(noun) no longer active; extinguished; “the extinction of the volcano”
Source: WordNet® 3.1
Etymology
Noun
extinction (countable and uncountable, plural extinctions)
The action of making or becoming extinct; annihilation.
(astronomy) The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
(pathology) The inability to perceive multiple stimuli simultaneously
Anagrams
• ctenitoxin
Source: Wiktionary
Ex*tinc"tion, n. Etym: [L. extinctio, exstinction: cf. F.
extinction.]
1. The act of extinguishing or making extinct; a putting an end to;
the act of putting out or destroying light, fire, life, activity,
influence, etc.
2. State of being extinguished or of ceasing to be; destruction;
suppression; as, the extinction of life, of a family, of a quarrel,
of claim.
Source: Webster’s Unabridged Dictionary 1913 Edition